Owner manual
CTI Products, Inc. NCB-AY User Guide
Appendix D. Troubleshooting 42
Does not illuminate when
remote LonWorks nodes
are transmitting messages.
1. LonWorks message packets from remote
nodes are not passing through the remote
router module.
2. LonWorks message packets from remote
nodes are not reaching the local NCB.
3. LonWorks message packets from remote
nodes are not passing through the local
router module.
1a. Verify the connection between the
remote LonWorks nodes and the
remote NCB.
b. Verify that “ACT” LED on remote
NCB illuminates when remote
LonWorks nodes are transmitting
messages.
c. Place the remote router in Repeater
mode and verify that its “ACT” LED
illuminates when remote LonWorks
nodes are transmitting messages.
d. If ‘1c’ is ok, re-commission the remote
router.
e. If ‘1c’ is not ok, return unit for
evaluation/repair.
2. See this Table above and verify that the
“ACT” LED “Does not illuminate
when “RSVC” button on remote NCB
is pressed”.
3. See this Table above and verify that the
“ACT” LED “Does not illuminate
when “RSVC” button on remote NCB
is pressed”.
Table D4
Miscellaneous:
REASON
CORRECTIVE ACTION
Cannot communicate with
Control Neuron Processor
of local NCB when using
NODEUTIL.
1. In Bridge or Configured modes, router
neurons and network interface are not in
the same domain.
2. In Repeater mode, the network interface
may be defective.
1. Verify that Nodeutil can communicate
with another LonWorks node.
2a. Place the local router neurons in
Repeater mode and verify that
communications is possible, or
b. Use Nodeutil to change the network
interface Domain to match the router
neurons’ domains.
Cannot communicate with the
Control Neuron Processor
of local NCB when using
NCBCON.
1. In Bridge or Configured modes, the
Control Neuron, the router neurons, and
the network interface are not all in the
same domain. (2)
2. In Repeater mode, the Control Neuron
and network interface are not in the same
domain. (1)
1. Place the local router neurons in
Repeater mode.
2. Use NCBCON to change the network
interface Domain to match the Control
Neuron domain.
Cannot commission the
Control Neuron
Processor when using
LonMaker for
Windows.
Incorrect external interface definition
(.xfb or .xif file) was specified when
commissioning node.
Use NCBTLC30 for Version 3 NCB
units.
Use NCBTLC20 for NCB units
prior to Version 3.